M4.4 Earthquake 18 km SW of Sipí, Colombia — September 17, 2026
2026-09-17 01:12:49 UTC (4 hours ago) · approx. 8:12 PM UTC-5 local
On September 17, 2026 at 01:12 UTC, a magnitude 4.4 shallow crustal earthquake struck 18 km SW of Sipí, Colombia, at a depth of 58.8 km and coordinates 4.5449°, -76.7654°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.0 mainshock that occurred 9 hours ago 29 km WSW of Sipí, Colombia. Since the mainshock, the USGS has recorded 14 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
-76.7654°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near Sipí, Colombia?
The magnitude 4.4 earthquake that struck 18 km SW of Sipí, Colombia on September 17, 2026 at 01:12 UTC had a depth of 58.8 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.4 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.0 one earlier?
No. This magnitude 4.4 earthquake is an aftershock of the larger magnitude 5.0 mainshock that occurred earlier 29 km WSW of Sipí, Colombia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000thyk). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 17, 2026). M4.4 Earthquake 18 km SW of Sipí, Colombia — September 17, 2026. Retrieved September 17, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000thyk/